http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
조립공차를 고려한 Telecentric 레이저 주사광학계 설계
전종성,이종웅 청주대학교 산업과학연구소 2013 産業科學硏究 Vol.30 No.2
A f-theta lens system which satisfies the image-space telecentric condition is designed for high power laser scanning. Effective focal length, beam diameter, and scanning length are 150 mm, 12 mm, and 52.4 mm respectively. In designing of the lens system, special regards are paid to avoid focusing of internally reflected light on the optical surfaces. Sensitivities of assembly errors evaluated from the mechanical design are reduced to increase productivity of the system.
Intragenic Control of Expression of a Rice MADS Box Gene OsMADS1
전종성,이시철,안진흥 한국분자세포생물학회 2008 Molecules and cells Vol.26 No.5
OsMADS1 is a rice MADS box gene necessary for floral development. To identify the key cis-regulatory regions for its expression, we utilized transgenic rice plants expressing GUS fusion constructs. Histochemical analysis revealed that the 5.7-kb OsMADS1 intragenic sequences, encompassing exon 1, intron 1, and a part of exon 2, together with the 1.9-kb 5' upstream promoter region, are required for the GUS expression pattern that coincides with flower-preferential expression of OsMADS1. In contrast, the 5' upstream promoter sequence lacking this intragenic region caused ectopic expression of the reporter gene in both vegetative and reproductive tissues. Notably, incorporation of the intragenic region into the CaMV35S promoter directed the GUS expression pattern similar to that of the endogenous spatial expression of OsMADS1 in flowers. In addition, our transient gene expression assay revealed that the large first intron following the CaMV35S minimal promoter enhances flower-preferential expression of GUS. These results suggest that the OsMADS1 intragenic sequence, largely intron 1, contains a key regulatory region(s) essential for expression.